Electronic device

Abstract

An electronic device includes: a display panel including a first pad; a data driver including a second pad disposed to overlap the first pad in a thickness direction of the display panel and disposed on the display panel; and an adhesive layer disposed between the display panel and the data driver. The adhesive layer includes: an adhesive resin in contact with the display panel and the data driver; and a conductive particle disposed inside the adhesive resin and in contact with and electrically connected to the display panel and the data driver. The data driver includes a groove defined in a surface thereof facing the display panel, and a length of the groove in a first direction perpendicular to the thickness direction is smaller than or equal to a diameter of the conductive particle.

What is claimed is: 
     
       1. An electronic device comprising:
 a display panel including a first pad; 
 a data driver including a second pad disposed to overlap the first pad in a thickness direction of the display panel and disposed on the display panel; and 
 an adhesive layer disposed between the display panel and the data driver, 
 wherein the adhesive layer includes:
 an adhesive resin in contact with the display panel and the data driver; and 
 a conductive particle disposed inside the adhesive resin and in contact with and electrically connected to the display panel and the data driver, 
 
 wherein the data driver includes a groove defined in a surface thereof facing the display panel, and 
 a length of the groove in a first direction perpendicular to the thickness direction is smaller than or equal to a diameter of the conductive particle. 
 
     
     
       2. The electronic device of  claim 1 ,
 wherein the data driver further includes:
 an insulating layer defining an opening exposing a portion of the second pad and disposed under the second pad; and 
 a conductive layer in which the groove is defined and which is disposed under the insulating layer while covering the exposed portion of the second pad, 
 
 wherein the conductive particle is in contact with and electrically connected to the conductive layer of the data driver. 
 
     
     
       3. The electronic device of  claim 1 , wherein the conductive particle is in contact with and electrically connected to the first pad of the display panel. 
     
     
       4. The electronic device of  claim 1 , wherein a shortest distance between the display panel and the data driver in the thickness direction is smaller than or equal to the diameter of the conductive particle. 
     
     
       5. The electronic device of  claim 1 , wherein the adhesive layer is an anisotropic conductive film. 
     
     
       6. The electronic device of  claim 1 , wherein a length of the groove in a second direction perpendicular to both the first direction and the thickness direction is smaller than or equal to the diameter of the conductive particle. 
     
     
       7. An electronic device comprising:
 a display panel including a first pad; 
 a data driver including a second pad disposed to overlap the first pad in a thickness direction of the display panel and disposed on the display panel; and 
 an adhesive layer disposed between the display panel and the data driver, 
 wherein the adhesive layer includes:
 an adhesive resin in contact with the display panel and the data driver; and 
 a conductive particle disposed inside the adhesive resin and in contact with and electrically connected to the display panel and the data driver, 
 
 wherein the data driver defines a plurality of grooves arranged in a surface thereof facing the display panel and spaced apart from each other in a second direction perpendicular to the thickness direction, and 
 lengths of the plurality of grooves in the second direction and lengths of the plurality of grooves in a first direction perpendicular to both the second direction and the thickness direction are each smaller than or equal to a diameter of the conductive particle. 
 
     
     
       8. The electronic device of  claim 7 ,
 wherein the data driver further includes:
 an insulating layer defining a plurality of openings exposing a portion of the second pad and disposed under the second pad; and 
 a conductive layer in which the plurality of grooves are defined and which is disposed under the insulating layer while covering the exposed portion of the second pad, 
 
 wherein the conductive particle is in contact with and electrically connected to the conductive layer of the data driver. 
 
     
     
       9. The electronic device of  claim 7 , wherein the conductive particle is in contact with and electrically connected to the first pad of the display panel. 
     
     
       10. The electronic device of  claim 7 , wherein a shortest distance between the display panel and the data driver in the thickness direction is smaller than or equal to the diameter of the conductive particle. 
     
     
       11. The electronic device of  claim 7 , wherein the adhesive layer is an anisotropic conductive film.